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Calcium Carbonate

Product Introduction

Chemical Name:Calcium Carbonate
Formular: CaHPO4.2H2O
Molecular Weght:172.09
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Chemical Name:Calcium Carbonate
Formular: CaHPO4.2H2O 
Molecular Weght:172.09 
Specifity: White, monoclinic crystalline powder; soluble in dilute Hydrochloric, Nitric and acetic acids, slightly soluble in water , insoluble in ethanol, when heated to 75, it may lose crystal water, convert to Anhydrous. 
Quality Standard:
Name of indexHG3257-1990According to the contract ZA2002
Fine gradeGrade1
StabilityAccord with the test
Accord with the test
PH value(20% turbid liquid)7.6-8.37.6-8.36.9-8.1
Loss on ignition,%24.5-26.524.5-26.524.5-26.5
CarbonateAccord with the testAccord with the testAccord with the test
Fineness(passing through 45Umtest sieving),≥%97.095.099.0
SulfidesAccord with the testAccord with the testAccord with the test
Chlorides(Cl),≤ %0.030.030.03
Absorptive water capacity(ml/20g)5.0-6.54.5-6.54.5-6.5
Content( As CaO)%32.0-33.031.5-33.031.4-32.9
As,≤%0.00050.00010.0001
Heavy metals(As Pb), ≤%0.0030.0010.001
Fluoride (As F), ≤%0.0050.0050.005
Degree of whiteness, ≥959595
P2O5,%

40.7-42.5
Content,%

98.5 min
60 D.C. Water Loss

0.6 pct. max
Titration value

57-61ml
Set Test

Pass Test
Acid Insolubles,%

0.2 max

Uses: In daily chemical industry, it is used as frictional agent for making top quality tooth paste, especially foaming type tooth paste.
Packing: 25kgs net paper bags or 25kgs or 1000kgs plastic woven bags 
Storage and Transport: It should be stored in a dry, Ventilative and clear warehouse; kept away from moisture and hot, Furthermore, it should be stored separately from poisonous substances.
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